Kenwood KDCW 7541 U Service Manual

Page 14

KDC- M P738U/W7541 U
/W7541UY/X792/X8009U

MICROCOMPUTERS TERMINAL DESCRIPTION

14

Pin No. Pin Name "0 Application Processing / Operation / Description

53 CLK |N1 | Serial sync clock input Sync to FL,CLK

54 FLiLAT 0 FL latch control

55 FLiDATA1 0 FL serial control data S11

56 3.3VDD -

57,58 X2,X1 | Clock input 6.6MHZ internal 66MHz

59 CVSS -

60 CKSEL | Clock generator operational mode input Direct connection to GND
VDD connection when the main clock is 5.5MHZ

61 PSEL | Input of input frequency selection signal in PLL mode or more and GND connection when the clock is
other frequencies

62 2.5VDD -

63 V58 -

64 MODEO | u-com operation mode input Direct connection to GND

65 MODE1 I mm Operation méde mm H: While writing-in

Used when debugging

66 PAN RST | System u-com control Cancel in 100msec after PONiPAN ON
Reset in 60usec after PONiPANOFF

67 AVDD1 | BIA conversion reference voltage Be connected to D3.3V

6869 NC | Terminal yet to be processed

70,71 AVSS1,AVSSO - D/A conversion reference GND Direct connection to GND

72 AVDDO | A/D conversion reference voltage Be connected to D3.3V

73~80 NC | Dedicated to input Direct connection to GND

81 2.5VDD

82 V58

83 NC (TYPE) I Not used Supporting switching of PULL UPiDOWN

84 TYPE1 | Set up destination to have customization or not H: Flash ROM, L: Mask ROM

85 NC 0 Not used L fixed

86 REMO | Remote controller signal input Detect with pulse width

87 PONiFL+B 0 FL bias power supply switch H: ON, L: OFF

88~91 NC 0 Not used Output L fixed

92 ROTARVLCCW I Rotary 1 A input (For VOL) 1 WISE/2 CHOKE
15 pulses/360°

93 ROTARYLCW | Rotary 1 B input (For VOL) 1 pulse/2 CIICKS
15 pulses/360°

94 WE I/O Memory data writing-in permission Terminal yet to be processed

94 NC 0 NC when MASKROM Output L fixed

95 OE I/O Memory data transmission permission iEIIi-SzfriIljhiitasIta-Irtizvgatp SW33

96,97 NC 0 Not used Output L fixed

98 3.3VDD

99 V58

100 FROMCHK 0 Used for-implementation checking by Product Repeat H" and L" before finalizing

Engineering OK: H, NG: L
100 NC 0 Not used when MASKROM Output L fixed